ULTRA-THIN CONCRETE ROOFferrocementindia.com/News Bulletin Sept 2019.pdfNewsletter 10 Sept, 2019...
Transcript of ULTRA-THIN CONCRETE ROOFferrocementindia.com/News Bulletin Sept 2019.pdfNewsletter 10 Sept, 2019...
1
ULTRA-THIN CONCRETE ROOF
Researchers from ETH Zurich have built a prototype of an ultra-thin, curved concrete roof using innovative digital design and fabrication methods. The tested novel formwork system will be used in an actual construction project for the first time next year.
A prototype for an ultra-thin, sinuous concrete roof using innovative design and fabrication methods has been designed and built by researchers from the ETH Zürich. The shell is part of a roof-top apartment unit called HiLo that is planned to be built next year on the NEST, the living lab building of Empa and Eawag in Dübendorf. The penthouse will provide living and work space for guest faculty of Empa. Researchers led by Philippe Block, Professor of Architecture and Structures, and Arno Schlüter, Professor of Architecture and Building Systems, want to put the new lightweight construction to the test and combine it with intelligent and adaptive building systems.
The self-supporting, doubly curved shell roof has multiple layers: the heating and cooling coils and the insulation are installed over the inner concrete layer. A second, exterior layer of the concrete sandwich structure encloses the roof, onto which thin-film photovoltaic cells are installed. Eventually, thanks to the technology and an adaptive solar façade, the residential unit is expected to generate more energy than it consumes.
The building technique for the roof was developed by the Block Research Group, led by Prof. Block and senior researcher Dr. Tom Van Mele, together with the architecture office supermanoeuvre, and tested out on a full-scale prototype. The prototype, which has already been dismantled to make space for future experiments, was 7.5 m high with a surface area of 160 m2 (covering an area in plan of 120 m2). The thickness of the concrete has an average thickness of 5 cm varying between 3 cm along the edges of the roof to 12 cm at the support surfaces.
Instead of formwork using non-reusable custom-fabricated timber or milled foam, which would be needed to realise such sophisticated form, the researchers used a net of steel cables stretched into a reusable scaffolding structure. This cable net supported a polymer textile that together functioned as the formwork for the concrete.
This not only enabled the researchers to save a great deal on material for construction, they were also able to provide a solution to efficiently realise completely new kinds of design. Another advantage of the flexible formwork solution is that during the concreting of the roof, the area underneath remains unobstructed and thus interior building work can take place at the same time.
FS 2019 in Nashik 5th National Convention on Ferrocement FS 2019
Hotel Grand Rio on Nashik Mumbai Road is waiting for the delegates of the National Convention. The inaugural session of the 1
st day will be on 7
th
November 2019. Nashik is a beautiful place to visit. It is the holy land of PRABHU SHRIRAMA. Trimbakeshwar is one of the 12 Jyotirlingam, and can be visited as it is only 10 km from Nashik.
Nashik has a domestic airport. Delegates
can come by flight also. Nashik is on Central Railway and it is 190 km from Mumbai. The convention is for 3 days. 7
th to 8
th November will be paper
presentations. On 9th
November a special session on Design of Ferrocement Structures will be conducted in MERI Nashik. Delegates can also enjoy the excurssion tour of Nashik. Registration is started now. Please visit www.fs2019.in
Newsletter 10 Sept, 2019 Editor- Neha Borkar Volume 1, Number 8
2
List of some Important References:
technical Papers on Ferrocement
1. Ferrocement as a Material
DEFF Research Database (Denmark)
Jensen, Jens Kristian Jehrbo
FERROCEMENT is not a new material. In 1850 Jean Louis
Lambot took out a patent on FERCIMENT, and in 1930's Pier
Luigi Nervi created FERROCEMENT. In this report the structure
(meshes, rods and mortar) and composition (diameter and
widths of meshes and rods, water/cement ratio, aggregat e/
cement...... ratio) are described. The mechanical properties
(tension, compression, bending, impact, fatigue and dynamic
behaviour) are detailed treated. The problems about
permeability, freezing/thawing and corrosion are mentioned.
Some new experiments are deseribed in connection with the
practical manufacturing...
2. Ferrocement: A versatile composite structural material - A
Review
International Nuclear Information System (INIS)
Memon, N. A.; Sumadi, S. R.
2006-01-01
The use of-based composites for structural application is
becoming more popular with the introduction of new high
performance materials. Ferrocement as a structural material
has evolved from an appropriate technology applied for rural
development to high performance and high durability
construction material. The efficient use
of ferrocement technology as per the requirements of the
structures must be studied and developed in order to assist all
the concerned parties concerned with structural activities. This
paper is aimed to present the research made continuously to
improve the ferrocement properties and performance and its
uses in the different application and to encourage practical
application of ferrocement especially in developing countries
like Pakistan. This paper covers the theoretical, experimental
and numerical studies conducted by several researchers to
investigate the mechanical and structural properties
of ferrocement. Also the efforts made to develop the design
code offerrocement have been reviewed. (author)
3. Self-flowing mortar for ferrocement in strengthening
applications
Directory of Open Access Journals (Sweden)
Shamir Sakir
2016-09-01
Full Text Available Ferrocement technology is becoming
more and more important nowadays for strengthening
and retrofitting of concrete structures mainly due to its
inherent strength properties. However, its labour intensive
nature makes it undesirable for rapid strengthening works.
In narrow spaces, strengthening with
conventional ferrocement is very critical and also time
consuming. Self-flowing mortar (SFM could be used with
this technology to overcome these limitations. This article
discusses the applicability of SFM
in ferrocement technology. The aim of this study is to
summarize available knowledge on SFM to make it feasible
for optimization in different industrial applications.
4. Low cost earthquake resistant ferrocement small
house, International Nuclear Information System (INIS)
Saleem, M.A.; Ashraf, M.; Ashraf, M.
2008-01-01
The greatest humanitarian challenge faced even today
after one year of Kashmir Hazara earthquake is that of
providing shelter. Currently on the globe one in seven
people live in a slum or refugee camp. The earthquake of
October 2005 resulted in a great loss of life and property.
This research work is mainly focused on developing a
design of small size, low cost and earthquake resistant
house. Ferrocement panels are recommended as the main
structural elements with lightweight truss roofing system.
Earthquake resistance is ensured by analyzing the
structure on ETABS for a seismic activity of zone 4. The
behavior of structure is found satisfactory under the
earthquake loading. An estimate of cost is also presented
which shows that it is an economical solution. (author)
5. Design Of a Fixed-Dome Ferrocement Biodigester Built
Partiall y Underground
OpenAIRE
Marianela de la Caridad Ortiz Alvarez; Hugo Rafael
Wainshtok Rivas; Henry Hernández Sotomayor
2016-01-01
The analysis, structural design and constructive sequence
of a fixed-dome biodigester built partially underground
and using ferrocement as construction material under
normal work conditions is in this paper developed. The
biodigester capacity is 24 m3 and it is composed by a
semispherical dome (cover), cylindricalwalls (body) and a
circular slab(bottom). The biodigester
using ferrocement as construction materialis in
agreement with the service guaranty requirements
settled for the established...
6. Experimental Evaluation of Lightweight AAC Masonry
Wall Prisms with Ferrocement Layers in Compression and
Flexure
KAUST Repository
Abdel Mooty, Mohamed; Hendam, Ahmed; Fahmy, Ezzat;
Abou Zeid, Mohamed; Haroun, Medhat
2012-01-01
An experimental program is designed to evaluate the
performance of lightweight autoclaved aerated concrete
masonry wall strengthened using ferrocement layers, in a
3
sandwich structure, under in-plane compression and out-
of-plane bending. The 25 mm thick ferrocement mortar is
reinforced with steel welded wire mesh of 1 mm
diameters at 15 mm spacing. Different types of shear
connectors are used to evaluate their effect on failure
loads. The effect of different design parameters on the
wall strength are considered including wall thickness,
mortar strength, and type and distribution of shear
connectors. A total of 20 prisms are tested in
compression and 5 prisms are tested under bending. The
proposed ferrocement strengthening technique is easy to
apply on existing wall system and results in significant
strength and stiffness enhancement of the tested wall
specimens. © (2012) Trans Tech Publications.
7. Experimental Evaluation of Lightweight AAC Masonry
Wall Prisms with Ferrocement Layers in Compression and
Flexure
KAUST Repository
Abdel Mooty, Mohamed
2012-05-01
An experimental program is designed to evaluate the
performance of lightweight autoclaved aerated concrete
masonry wall strengthened using ferrocement layers, in a
sandwich structure, under in-plane compression and out-
of-plane bending. The 25 mm thick ferrocement mortar is
reinforced with steel welded wire mesh of 1 mm
diameters at 15 mm spacing. Different types of shear
connectors are used to evaluate their effect on failure
loads. The effect of different design parameters on the
wall strength are considered including wall thickness,
mortar strength, and type and distribution of shear
connectors. A total of 20 prisms are tested in
compression and 5 prisms are tested under bending. The
proposed ferrocement strengthening technique is easy to
apply on existing wall system and results in significant
strength and stiffness enhancement of the tested wall
specimens. © (2012) Trans Tech Publications.
8. Nonlinear Modeling of Autoclaved Aerated Concrete
Masonry Wall Strengthened using Ferrocement Sandwich
Structure
KAUST Repository
M., Abdel-Mooty
2011-01-01
Autoclaved Aerated Concrete (AAC) block are used mainly
as non-load-bearing walls that provide heat insulation.
This results in considerable saving in cooling energy
particularly in hot desert environment with large variation
of daily and seasonal temperatures. However, due to the
relatively low strength there use load bearing walls is
limited to single storey and low-rise construction. A
system to enhance the strength of the AAC masonry wall
in resisting both inplane vertical and combined vertical
and lateral loads using ferrocementtechnology is
proposed in this research. The proposed system
significantly enhances the load carrying capacity and
stiffness of the AAC wall without affecting its insulation
characteristics. Ferrocement is made of cement mortar
reinforced with closely spaced wire mesh. Full scale wall
specimens with height of 2100mm and width of 1820mm
were tested with different configuration of ferrocement.
A finite elementmodel is developed and verified against
the experimentalwork. The results of the finite element
model correlates well with the experimental results.
9. Experimental behavior of full-scale exterior beam-column
space joints retrofitted by ferrocement layers under cyclic
loading
Directory of Open Access Journals (Sweden)
Ibrahim G. Shaaban
2018-06-01
Full Text Available A majority of the traditional reinforced
concrete frame buildings, existing across the Middle East,
lack adequate confinement in beam-column joints, or in
other words, are shear deficient because they were
constructed before the introduction of seismic codes for
construction. This research studies the experimental
behavior of full-scale beam-column space (three-
dimensional joints under displacement-controlled cyclic
loading. Eleven joint specimens, included a traditionally
reinforced one (without adequate shear reinforcement, a
reference one with sufficient shear reinforcement
according to ACI 318, and nine specimens retrofitted
by ferrocement layers, were experimentally tested to
evaluate a retrofit technique for strengthening shear
deficient beam column joints. The studied variables were
the number of layers, orientation angle of expanded wire
mesh per layer, and presence of steel angles in the
corners of joint specimen prior to wrapping
with ferrocement layers. The experimental results
showed that proper shear reinforcement for the test
joints, according to ACI 318, enhanced the behavior of the
specimen over that of the traditionally reinforced
specimens without adequate shear reinforcement. The
joints retrofitted by ferrocement layers showed higher
ultimate capacity, higher ultimate displacement prior to
failure (better ductility, and they did not suffer heavily
damage as observed for the traditionally reinforced one.
Increasing the number of ferrocement layers for
retrofitted specimens led to improving performance for
such specimens compared to the traditionally reinforced
ones in terms of enhancing the ultimate capacity and
ultimate displacement. Specimens retrofitted
by ferrocement layers reinforced by expanded wire mesh
4
of 60° orientation angle showed slightly better
performance than those of 45° orientation angles.
Retrofitting using steel angles in addition
to ferrocement layers improves the seismic performance
of the specimens
10. Isotropic damage model and serial/parallel mix theory
applied to nonlinear analysis of ferrocement thin walls.
Experimental and numerical analysis
Directory of Open Access Journals (Sweden)
Jairo A. Paredes
2016-01-01
Full Text Available Ferrocement thin walls are the
structural elements that comprise the earthquake
resistant system of dwellings built with this
material. This article presents the results drawn from an
experimental campaign carried out over full-scale
precast ferrocement thin walls that were assessed under
lateral static loading conditions. The tests allowed the
identification of structural parameters and the
evaluation of the performance of the walls under static
loading conditions. Additionally, an isotropic damage
model for modelling the mortar was applied, as well as
the classic elasto-plastic theory for modelling the meshes
and reinforcing bars. The ferrocement is considered as
a composite material, thus the serial/parallel mix theory
is used for modelling its mechanical behavior. In this work
a methodology for the numerical analysis that allows
modeling the nonlinear behavior exhibited
by ferrocement walls under static loading conditions, as
well as their potential use in earthquake resistant design,
is proposed.
11. Nonlinear Modeling of Autoclaved Aerated Concrete
Masonry Wall Strengthened using Ferrocement Sandwich
Structure
KAUST Repository
M., Abdel-Mooty; M., El-Kashef; E., Fahmy; M., Abou-
Zeid; M., Haroun
2011-01-01
Autoclaved Aerated Concrete (AAC) block are used mainly
as non-load-bearing walls that provide heat insulation.
This results in considerable saving in cooling energy
particularly in hot desert environment with large variation
of daily and seasonal
12. How to build a small ferro-cement water tank: technical
guide
CSIR Research Space (South Africa)
Sadzik, P
1988-05-01
Full Text Available This guide will assist on how to build a
small water tank which can be used to store spring water,
rainwater or water pumped from a stream or dam. Small
water tanks can be constructed from many different
materials such as corrugated iron, bricks...
13. Tensile Behaviour of Welded Wire Mesh and Hexagonal
Metal Mesh for Ferrocement Application
Science.gov (United States)
Tanawade, A. G.; Modhera, C. D.
2017-08-01
Tension tests were conducted on welded mesh and
hexagonal Metal mesh. Welded Mesh is available in the
market in different sizes. The two types are analysed viz.
Ø 2.3 mm and Ø 2.7 mm welded mesh, having opening
size 31.75 mm × 31.75 mm and 25.4 mm × 25.4 mm
respectively. Tensile strength test was performed on
samples of welded mesh in three different orientations
namely 0°, 30° and 45° degrees with the loading axis
and hexagonal Metal mesh of Ø 0.7 mm, having opening
19.05 × 19.05 mm. Experimental tests were conducted
on samples of these meshes. The objective of this study
was to investigate the behaviour of the welded mesh and
hexagonal Metal mesh. The result shows that the tension
load carrying capacity of welded mesh of Ø 2.7 mm of
0° orientation is good as compared to Ø2.3 mm mesh
and ductility of hexagonal Metal mesh is good in
behaviour.
he FS code was appreciated by the guests.
Shri Shyamaprasad Palekar, Vijay Shitole and
Snehal Shitole shared information on
ferrocement. Students from Amrutvahini
Engineering College, Sangamner displayed a
ferrocement model of equitatble distribution of
irrigation water. The concept was guided by
Prof. Rahane. This system can eliminate the
disputes in farmers by giving them on-demand
water with equal pressure. This will also
minimise the seapage losses in irrigation.
5
REVIEW OF FACTORS
INFLUENCING THE DURABILITY
OF FERROCEMENT
This article surveys the research literature on the durability of ferrocement and attempts to explain the relative corrosion immunity of ferrocement compared with reinforced concrete.
Durability of reinforced concrete is primarily defined in terms of permeability; the author proposes a list of factors which affect the durability of reinforced concrete: (1) influence of hydroxyl ion using different cement types; (2) influence of hydroxyl ion due to different cement contents; (3) incidence of capillary voids at different water to cement ratios; (4) effect of compaction intensity in permeability; (5) influence of curing cycles on permeability; (6) effect of silica fume on void filling; (7) effect of tricalcium aluminate content; (8) polymer additions to concrete; (9) effect of surface coatings; (10) cathodization; (11) temperature effects; (12) protective coatings on reinforcing. An examination of 2 ferrocement experimental plates (2 mm plain ht wire with 3 mm cover and 2.5 ht galvanized wire with 3-4 mm cover) took place after a 10.4 year exposure to weather. Procedure and results are reported in detail. Conclusions suggest that: (a) corrosion attacks appear to be limited to crack zones, and (b) galvanized wire is significantly superior to plain wire in crack sites. The author surveys the evidence of long term durability of ferrocement, refers to specifications at the ACI committee s49, and concludes that it is likely that chemical and electro-chemical protection of the steel reinforcement is the dominant mechanisms. He suggests that the superior resistance of ferrocement to invading acid ions and gaseous co2 is probably due to the use of galvanized steel, fine grained well graded sands, low water cement ratios, chemical neutralization by the alkalinity of rich mortars, and to compaction. (TRRL)
Corporate Authors: CEMENT & CONCRETE ASSOCIATION OF NEW ZEALAND 13,WALL PLACE, PORIRUA, New Zealand New Zealand Concrete Research Association Private Bag Porirua, New Zealand
Authors: Alexander, D
College students complete
Tambunan sculpture TAMBUNAN: The “I Love Sunsuron” ferro-cement sculpture here is the labour of 30 youths from Kampung Sunsuron who were trained seven days in basic ferro cement courses at the Tambunan College Community. It provides unique background view with Mount Wakid and Bukit Kolindasan. The highlands sandwicked by clouds provide a memorable photo opportunity which has so far been viewed by over 10,000 social media users. The youths took two days to complete it and all course materials were provided by the college management. The ferro cement course is among the seven short courses offered in conjunction with the two-day PSH Tour held at Datuk John Gaisah hall Kampung Sunsuron, said Tambunan Community College Director Jominin Goropos. He said other courses were make-up, plant-based fertigation, yellow noodle processing, pastry basic, light vehicle service basic and flavor sauce processing.
The programme organised by Tambunan Community College with a total of 200 participants was officiated by Assistant District Officer Herry Awit representing District Officer, Jumain Abdul Gani.
The aim of the College is to deliver knowledge and skills that can assist local communities in the development of entrepreneurship and improve the local socio-economy. In this regard, the college has identified target community groups in villages, and even tour the Interior in Sipitang and Pagalungan Pensiangan to ensure implementation of PSH at various community levels. Jominin said Tambunan Community College is a Public Higher Learning Institution (IPTA) which provides training and education to secondary school leavers before entering the job market or furthering studies.
The college also provides opportunities for local
communities to gain training and skills to produce knowledgeable communities in line with the PSH concept. “Hence Tambunan Community College is committed to ensuring the Malaysian Development Plan (Higher Education) to appreciate Lifelong Learning through the implementation of various short courses,” he said.
6
8 special materials that are
most suitable for the repair,
restoration and seismic
strengthening of buildings
Every year numerous buildings across the country are
affected by natural calamities. In such a scenario, it is
very important for builders and constructors to focus on
the structural strength of a building while carrying out
any kind of constructi...
Like any other country, India too has faced a fair share of
climatic adversities in the past. While natural calamities
are a big concern, a significant proportion of the country’s
infrastructure is incapable of withstanding even acts of
nature such as heavy rains. Heavy downpours during June-
July 2019 in Maharashtra caused several walls to collapse
across the state resulting in severe loss of life and
property.
According to the National Institute of Disaster
Management, GoI, as much as 59% of land area in India is
susceptible to seismic hazards or earthquakes. The country
has witnessed some highly devastating earthquakes since
the late 19th century which have had consequential
effects on our buildings and infrastructure.
In such a scenario, it is very important for builders and
constructors to focus on the structural strength of a
building while carrying out any kind of construction
activity. Some such activities include repair, restoration or
seismic strengthening of dilapidated buildings. In a
building strengthening guideline prepared by Dr Anand S.
Arya, Professor Emeritus, Dept. of Earthquake Engineering,
I.I.T Roorkee and advisor to the Ministry of Home Affairs,
he enlists eight special materials that are best suited for
building repair and strengthening projects.
Here’s the list of 8 materials that are most suitable for
repair, restoration and seismic strengthening of buildings:
Non-Shrink Grouts
Shotcrete
Epoxy Resins
Epoxy Mortar
Quick-Setting Cement Mortar
Mechanical Anchors
Ferrocement and Fibre Concrete
Fibre Reinforced Plastics (FRP)
On 24th August 2019 Er Ulhas Paranjape was invited as a Head RWH Cell and Trustee of Jalvardini Pratishtan, by Director "Devgiri Institute of Engineering and Management Studies" Arurangabad, to Deliver Lecture on " Water Conservation with Ferrocement and fiber Cement Technology" to Civil Engineering Students.about 100 Student and staff member were Present . He displayed 1) Video on Ferrocement Tank Construction 2) Video on Natural Fiber Cement Tank Construction On 30 July 2019, he was invited to talk on Water Conservation & R.W.H in Urban Area by C-DAC (Centre for Development of Advance Computing), A Scientific Institution of the Ministry of Electronics and Information Technology Govt of India. He talked on a) House with Conserved Rain Water with Examples b) Water Conservation in Urban area with Case Studies About 30 Staff members were present. Simultaneously Kharghar Staff also was connected through Video Conference Facility. Staff members in both Offices asked Questions. They were impressed with idea of House with conserved Rain Water. Paranjape told them that they can visit any site. MRA Centre is there since 1973.
Dr. Kirloskar HOD, Civil Dept of Vigyavardhini College of Engineering and Technology, Vasai Road (West), Dist Palghar along with Jalvardhini Pratishthan, organised 2 day Workshop on Ferrocement Technology on 4th & 5th July 2019. In the Morning Er Paranjape delivered a Lecture on Ferrocement Technology and its uses in Water Conservation. He also talked on use of Natural Fibers in Construction of Ferrocement Tank above Ground by replacing Chicken mesh by Natural Fibers. He showed them Photos of such Tank built by Jalvardhini Pratishthan. He showed them video of Ferrocement Tank Construction and Natural Fiber Cement Tank Construction at Guhagar. Afterwards students Participated in actual Construction of 3'-0" X 3'-0" X 2'-" Ferrocement Tank.
7
MUMBAI SUB CENTRE
7th May : Akshay Tritiya: FERROCEMENT SOCIETY’S SUB
CENTRE MUMBAI was inaugurated at Er. Milind Kulkarni’s
Office at Vileparle East, Mumbai.
Members of the Ferrocement Society who live in Thane
District and near Mumbai are attached to this sub centre
now. Under the guidance of Er Ulhas Paranjape, the sub
center will organize different technical events to increase
the awareness of ferrocement technology amongst the
Architects and Engineering students in Mumbai area.
Revised Edition of "Let us Collect Water Using
Ferrocement Technology" by Jalavardini Pratishtan was
released By Senior Engineer R. G. Kulkarni and Er.
Padmanabh Lele, Hon. Secretary Ferrocement Society. Er.
R. G. Kulkarni is a Graduate of 1949 from COEP and he is
95 year old Young Man. He expressed his desire to visit
site during construction of Ferrocement Tank at Village
level if site is near by Mumbai.
The strength of members in this sub centre is
about 25 which may increase to 100 this year, said Er Milind Kulkarni.
NASHIK SUB CENTRE
July 2019: Prof Dr. Sunil Kute to form a new sub centre in
Nashik. About 24 members in Nashik are willing to form a
Sub centre. Recently Er. Mahendra Nakil has joined the
society. He recently retired as Superintending Engineer
from Water Resources Department of Government of
Maharashtra. 5th
National Convention is being organized in
Nashik City during 7-9 November 2019.
Ferrocement Day
observed in New Mumbai Konkan Bhavan, New Mumbai Engineers attended the
ferrocement presentations on the occasion of the Ferrocement
Day on 4th
Septemebt 2019. Engineers from CIDCO, Water
Resources Department and PWD design wing were present. Er
Ramgude introduced ferrocement technology. He previously was
working in Nashik and was an active member of the committee
for the Handbook on ferrocement published by Government.
Kiran Rajurkar, Assistant Engineer from CIDCO and Er. Ulhas
Paranjape, Jalvardhini, Mumbai were the main guests for the
function.
For registration of FS 2019
Visit
www.fs2019.in
8
Sustainability in Australia’s
first Earthship Designer: Martin Freney, Earthship Eco Homes
Photography: Allan Bjerre
Completion date: 2016
Earthship Ironbank is Australia’s first approved Earthship
project. It is currently being used as a commercial bed-and-
breakfast as well as a test site for Earthship research.
Designer Martin Freney, founder of Earthship Eco Homes is
using this project to uncover how energy and water
efficient Earthships are, and whether they work will in the
Australian climate.
Design features
The design was inspired by Michael Reynolds’ “Simple
Survival Model” Earthship, which focuses on the five main
human needs of shelter, water, sanitation, energy, food
and waste management (garbage).
However, this project has a number of sustainable
innovations (and experiments), making it more robust
than an Earthship just for survival:
A “green” gravel roof for bushfire resistance and water filtration
Hempcrete insulated entry and bathroom ferrocement vaults
Operable skylights in the greenhouse
Twin front-facing earthtubes (for extra summer cooling and to deal with site slope)
Increase north-facing roof for additional solar panels and hot water service
Indoor battery storage (to reduce battery temperature)
Outdoor pump and valve box (to reduce noise)
Side entry
Framing for shade sails on the greenhouse glazing to deal with summer heat
Fire sprinklers
Sensors to monitor air temperature, humidity, solar radiation and air speed in the earth tubes
Challenges
According to Freney, approval was surprisingly easy, possibly due to being in a rural area and finding the right engineer and private certifier.
However, there was an issue approving the installation of an indoor greywater system, with SA Health rejecting the proposal due to concerns about potential smells in the home, people coming into contact with greywater by digging in the garden, and potential future owners not paying attention to maintenance and operation issues that might lead to health risks.
Regardless, the system was installed, tested and then “decommissioned” by removing the heart of the system that allows the user to direct the water either to the greywater planter (which is not allowed in South Australia) or out to the septic tank (which is what the law requires).
________________________________________________
F’ DAY in Coimbatore
FERROCEMENT DAY was celebrated by Department of Civil
Engineering, SRI KRISHNA COLLEGE OF TECHNOLOGY,
Coimbatore, Tamil Nadu on 3rd
September. The program
was attended by staff and 200 Students. Dr. V. SREEVIDYA
gave a presentation on "APPLICATIONS OF FERROCEMENT
TECHNOLOGY" followed by the Research work carried out
in FERRO GEOPOLYMER TECHNOLOGY. Project
Presentation was done by Students on Innovative
Materials and Methods. Dr. I. PADMANABAN, Head of The
Department gave the Felicitation lecture.
9
FERRO CEMENT WALL PANELS (Courtesy: Nabanita Deb)
NB Institute of Rural Technology, Kolkata is promoting
Ferro Cement product for rural housing for couple
of years. NBIRT has developed this earthquake resistant
Ferro Cement Panel by providing wire mesh which are now
being used in Tripura. However, this production unit is
manual and the quality of the product is not assured.
NBIRT has signed a MOU with Development Alternative,
New Delhi for mechanisation of existing Ferro
Cement Production unit and manpower development.
India, although has made a considerable technological
progress in housing sector but still almost 40%
of rural population lives in mud house which is prone to
natural calamities, theft etc. It is also unhygienic due to
lack of proper ventilation and natural lighting. Low cost
Ferro cement panel is a viable alternative to eliminate the
above factors in cheaper rate than the conventional brick
made houses. The conventional brick made houses lead to
high emission of inappropriate gases causing pollution and
increasing the global heat. Due to transportation of the
goods like rods, cement etc, more of pollution is
percolated in the air.
These dangerous possibilities take a back seat when the
ferro cement panels are used in building construction.
Ferro cement wall panels are made of OPC, PPC or blast
furnace slag cement, aggregates and reinforcements
like Wire Mesh: Chicken mesh, welded mesh, woven
mesh, Hexagonal mesh etc. and skeletal reinforcement as
steel wire or small diameter steel bar. NBIRT has
already developed these panels but the present process is
manual resulting into low productivity. A few houses have
also been constructed with these FC panels. Under
the Core support scheme the process of manufacturing
these FC panel will be mechanized (semi automatic) for
high productivity with an excellent quality and this
technology can be helpful for more people. The longevity
of these houses is expected to be good in the years to
come.
NB Institute for Rural Technology (NBIRT),
Kolkata office is located in the prime area of the city. It is
only 200 meters from the Eastern Metropolitan By-pass
connecting North and South Kolkata. The office has a four
storied “Green Building” with Elevator, Internet facilities,
Conference Room, a Modern Library and a Renewable
Energy Training Centre. The entire office building of
Kolkata has been constructed with fly ash bricks.
Jayant Murudkar develops ferro panels
In Maharashtra, Satara Based industrialist Jayant
Murudkar has recently carried out successful
production trials of ferrocement panels. He has
constructed a demo house in his factory in MIDC
area.
The panel has size 12 feet by 9 feet. The toilet
block has size 5 feet by 12 feet. The structure is assembled
with nut bolts within 3 hours. 40 mm thick ferrocement
panel has ribs to make it strong. Precast roofing panels are
used for roofing. A ferrocement toilet unit is also
manufactured in Satara. The cost of this unit is Rs 18000.
10
Ferrocement Day in AISSMS college
Ar. Sumit Bagade bags V D Joshi Award
Pune: Ar. Sumit Bagade wins the competition for the best
ferrocement structure award for 2019. He built a gazebo
temple at RAJ VASTU in Satara city. This year other
participants were also felicitated. Nandkumar Jadhav
(Mega Cave resort), Dipak Kanhere (Ferro house), Ravindra
Nale (Temple ferro dome), Mitra Engineers and Architects
(Spherical ferrocement tank) were the four experts who
had submitted the entry.
Ferrocement Society has decided to celebrate 3rd
September as the Ferrocement Day every year, in the
memory of Great Engineer Late V. D. Joshi. Ferrocement
Society organizes such competition every year on this
occasion. The award is given to the best ferrocement
structure. Previous year winners were Ar. Anupama
Kundoo (Australia), Owen Waldschlagel (USA), Arch. Ajay
Thosar, Pune, Er. Biji John, Chenganassery, Kerala, and
Shrishilp Consultants, Aurangabad. This is the seventh
year. Late Vishnu D. Joshi was the pioneer of Ferrocement
technology. The award is started in remembrance of Late
Joshi.
Er Subhash Patil won the V D Joshi award of
2018. He builta 6 meter high arch type ferrocement dam
at Village Hatnur, District Sangli, Maharashtra. Other
participants last year were Reliance Foundation and Dnyan
Prabodhini.
Ar. Vaishali Mohite, Chandrashekhar Hangekar,
Suhas Mahamuni and Pushyamitra Divekar worked as Jury
for the competition. The selection is based on the
presentation, percentage use of ferrocement, innovative
ideas etc. Shri R K Nitturkar, Chief Engineer, Retired,
Prakash Nagnath, Prof. Parekar, Ulhas Adhav were also
present for the function. AISSMS Deputy Chairman Suresh
Shinde was the Guest of Honour and Prin D S Bormane
was the Chief Guest. The function was organized by HOD
Dr. Uttam Awari, anchored by P P Lele, Hon Secreatry, FS.
Er Girish Sangle gave vote of thanks.
GAZEBO TEMPLE AT RAJ VAASTU, SATARA
V.D.Joshi (Pioneer of ferrocement) (Birth-14 Feb.1927, Death- 3 Sept. 2011)
Bachelor of Civil Engineering University of Mumbai (1948), PG in Advanced Structural Engineering, Imperial College, London (1956), University of Cambridge (1958), Member, Institute of
Civil Engineers (London), Over 50 years' experience in design and planning of Civil Engineering Services, Structural Design of High rise Buildings, London. Total Engineering Inputs in the planning and construction of : High rise building at Nariman Point, Mumbai Large span industrial structures for manufacturing industries in Delhi, Bangalore and Patiala. Developmental work in new innovative technology applications in construction especially Ferrocement and Fibre Reinforced Concrete. Responsible for several landmark Projects in and around Delhi and Mumbai Institution of Engineers India Architectural Engineering Design Award 2000. Noteworthy feature is the design of first high rise building of Express Towers, Nariman Point, Mumbai; he has designed with architect Mr Balkrishna Doshi a number of structures in India, like Hussain Gumpha in Ahmedabad. Thereafter Mr Joshi came to Pen and motivated ADIWASI workmen to construct ferrocement boats. Malini Joshi, his wife was also involved in his mission to teach ADIWASIS. In 1990 and after training the labour in Pen and constructing a few 'dingis' in Pen area he came to Pune and constructed his own residential building- with maximum use of ferrocement members.(Opposite Balbhim Mandir, Erandwane). He was perfectionist in writing specifications he expected.
FFSS--22001199 5th NATIONAL CONVENTION ON
INNOVATIONS IN FERROCEMENT “ACCEPTANCE IN CONSTRUCTION SECTOR”
Nashik (Maharashtra), India, November 7-9, 2019
Ferrocement is a material of millennium and an avenue towards Green Technology. This is the FIFTH convention on this subject organized by Ferrocement Society that is providing a forum for architects, civil engineers and working professionals across India to present and discuss the projects, research and developments in a broad spectrum regarding innovations in Ferrocement technology and its acceptance in construction sector in urban and rural area. TOPICS Topics to be covered at the conference include, but are not limited to :
1. Men, Materials and Methods
Meshes in geopolymer mortars-stress-strain behavior in tension, their bond and crack behavior, Geopolymer mortars: mix design for different strengths, use of sea sand as aggregate and sea water for mixing, High strength cement mortars- their mix design, Increase in compressive strength of cement mortar due to mesh reinforcement, textile reinforced composites
Methods of casting: Comparative study of Pressfill, vibro-press, forcing mortar in meshes with mortar sprayer pressing mesh layers in mortars, pulltrusion method and pour-cast method of casting in moulds.
Training programs for technicians and entrepreneurs.
2. Use of fibres, plasticisers and other construction chemicals in Ferrocement and thin reinforced composites.
3. Design Methods- Designs based on a)equivalent area and stress method b)specific surface method c) crack control method, d) energy absorption method and e)strength through shape method.
o Design tables for number of meshes for direct use in field, o Concept of ferrocement capsules for field applications. o Design of shaped structures, arch faced walls, paneled cavity walls, box-sectioned hollow floors, hollow
beams and hollow columns, stiffened plates, lost formwork as structural members, joints of precast members as structural members.
o Design for waterproofing and fire-resistance, water-tightness, shock and blast loading, ballistic loads , wind and earthquake loads.
4. Experimental execution of Ferrocement works.
5. Corrosion resistance property of Ferrocement.
6. Alternative sand types and their impact on properties & cost.
7. Waterproofing with ferrocement, ferrocement in coastal areas.
8. Field applications of Ferrocement (Applications and field studies based on typical properties of ferrocement like water-tightness, thin walled construction, high strength to weight ratio, form-free construction, adaptability to take any shape and size, ductility and high energy absorption capacity)
9. Repairs, rehabilitation and retrofitting by Ferrocement.
10. Standardization, codification of Ferrocement (suggestions for code to be drafted for “Ferrocement- material, method of construction and designs based on properties of ferrocement only”(and not treating it as an extended form of RCC)
11. Schedule of rates, Rate analyses of Ferrocement and thin reinforced composites.
12. Ferrocement in future.
13. Innovative concepts using ferrocement. (Innovative ideas and unconventional structures which are possible only in Ferrocement)
14. Technology transfer & engineering entrepreneurship.
15. Energy saving and carbon credit with Ferrocement.
16. Needs in Rural Area and application of ferrocement for villagers.
17. Precast products of ferrocement, textile reinforced composites and mass scale applications in private as well as Government sector, including WRD, PWD, CPWD, MJP, MSRDC, etc.
18. Innovative applications: Use for road pavements in place of prestressed concrete roads, ferroasphaltcrete for repairing potholes, precast ferrocrete lost forms as structural members, precast panels for bunkers in war field, needle free K T weirs, parabolic gutters and canals, fire rating of ferrocrete, thermally insulated houses, egg-shaped large size conduits for outfall sewers, plastic pipe out coated with ferrocrete as penstock., three dimensioned ferrocrete- meshcrete a substitute for prestressed concrete, spun ferrocrete pies replacing prestressed concrete pipes. Floating platforms, barges, Pontoons, Solar panel floats.
19. Engineered housing- mass scale housing with ferrocrete precast panels, fabricate in factory cast at site technique- for single wall, double wall, walls and floors of houses, Ribbed and stiffened precast panels with joints as structural members, cavity walls, hollow floors, beams and columns, factor production of precast units- factory layout production technique and its economics,
20. Small ferrocrete precast building components like drainage chambers, covers, chajja and lintel units, fins and sun breakers, ferrocrete solar collectors
CONVENTION VENUE
The convention will be at Hotel Grand Rio, Nashik, INDIA. Nashik is 180 km from Mumbai, it is on Central railway.
Nashik is served by direct charter flights from various cities in India. Taxi service is available. CONVENTION FEES FOR REGISTRATION The fee Structure and various concessions shall be as below. (Cost of Excursion tour is not included)
Type of registration Fees per delegate
1 Registration fees INR 5000
2 For group registration, 5 or more delegates INR 4500
3 For technical partners ( Maximum 10 delegates) INR 4500
4 For Life members of FS INR 2500
5 For students of Architecture/Engineering (I-card essential) INR 1000
The registration fee must be paid directly to the “FERROCEMENT SOCIETY” by Demand draft, or cheque drawn on any bank payable at Pune. Fees can also be paid directly in the nearest branch of State Bank of India accounts of “Ferrocement Society” in cash also. The details of bank account are as below. Account Number-36815801782, IFSC Code SBIN0004618, Erandwane Branch, Pune. The registration forms, duly filled along with soft copy of a photo shall be sent by email or by post RPAD, after paying the fees in bank. Note that credit cards cannot be accepted for the payment of convention fees at the conference site. Printed book of proceedings (having ISBN number) and a memento will be given to delegates.
IMPORTANT DATES TO BE NOTED
7 November 2019 Conference Registration, Reception and 1st day proceedings
8 November 2019 2nd
day proceedings, Group discussions, Demo of water tank construction.
9 November 2019 Special workshop on design of ferrocement structures.
10 November 2019 Excursion tour - tourist spots in Nashik (Optional)
Hotel Grand Rio has very good rooms and can be booked online.
FERROCEMENT SOCIETY FS-2019 Registration Form
(Can be downloaded from website)
PERSONAL DETAILS (Please attach a soft copy of your photo)
Full Name-………………………………………………………………
Designation……………………………..
Name of Firm/ company/ College/ Govt/ Organisation-
…………………………………………………………………………………………….
Contact Address-…………………………………………………………………………………..
………………………………………………………… State………………………..
Skype name…………………………….. Email …………………………………….
Mobile Number-………………………...
Birth date-………………………………………….
Educational Qualification
Professional experience and special achievements/ Professional memberships
…………………………………………………………………………………………….
…………………………………………………………………………………………….
…………………………………………………………………………………………….
CONFERENCE FEES DETAILS
Category- Delegate/Leading Author/ Life member /Group /Tech. partner/Student
Payment by Cheque/ DD/ Online cash / No. ……………………….Date………………….….
Name of Bank……………………………………….Branch……………… City………
For Rs……………………..( for details see the brochure)
Date………………. Signature
CONVENTION CHAIR FERROCEMENT SOCIETY, Pune Office: 1030/1, Akashganga Society, Model Colony, PUNE 411 016 INDIA
Phone: 020-25655380, 9422736252
E-mail : [email protected] web : www.ferrocementindia.com
CONVENTION ADVISORY COMMITTEE Dr. B. N. Divekar, Pune (9921480126)
Er. Chandra Mohan, Pune (982259479) Er. P. C Sharma, Ghaziabad, UP (9810285722) Er. Ulhas Paranjape, Mumbai (9820788061) Dr. V. Sreevidya, Coimbatore, TN (9944263851) Dr. Shoba Rajkumar, Salem, Tamil Nadu (9659789175)
Er. Milind Kulkarni, MKCE, Mumbai (9322280782)
Ms. Kiran Rajurkar, New Mumbai (9769070977)
CONVENTION SECRETARIATE
FERROCEMENT SOCIETY,
Pune Office: 1030/1, Akashganga Society, Model Colony, PUNE 411 016 INDIA Nashik office : Dr Sunil Kute, K K Wagh College of Engineering, Nashik, INDIA E-mail : [email protected] web : www.ferrocementindia.com,
Important contacts CONVENER DR. SUNIL KUTE 0253-2515264
Co-Convener Chandramohan Hangekar 09822597479 Co-ordinator Girish Sangle 09422736252
Organising Secretary- Er Chandrashekhar Hangekar 09423008267
To, ………………………………………… ………………………………………… …………………………………………
From- FERROCEMENT SOCIETY, Pune Office: 1030/1,
Akashganga Society,
Model Colony, PUNE 411 016 INDIA Phone: 020-25655380, 9422736252
FFSS--22001199